Solve the equation for y: -8×+4y=20

What two criteria are needed for triangles to be similar

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.